One square foot.
There is no dirt...it is a hole
7.48 Gallons Calculation 1 foot = .3048 meters Volume of a box of dimensions 1 foot * 1 foot * 1 foot = .3048 meters * .3048 meters * .3048 meters = 0.0283 cubic meters = 28.3 liters = 7.48 GallonsIt...
the volume of the box is 1
150 poundsThat is 1 cubic foot and concrete weighs 150 pounds per cubic foot